Change the patrol areas to be stored as a sorted list of points grouped in fixed cells for each staff entity. The complexity will be a mixed O(1) and O(log n) search.
For designs with a long description, a line of text in the 'Select ride design' window could overflow onto the next window element. The window height was just one newline too small. Therefore, increased the window size with a single line.
This raises two parameters: the base excitement value (which is very low, especially since the air-time bonus is limited too) and the bonus value (the novelty of this ride type warrants a bigger value).
It leaves the rest of the poor bonuses as-is, as some of them (like scenery and synchronisation bonuses) might just be there because the track obscures the view.
Fixes an inconsistency wuth RCT2 where track prices with a fractional part
did not have their price rounded up when building, but did when refunding.
This created an exploit where refunding such a track piece granted the player
0.50€ more than they spent on the piece.
